Results 41 to 50 of about 12,289 (137)

Lensing by Kerr Black Holes. I: General Lens Equation and Magnification Formula

, 2011
We develop a unified, analytic framework for gravitational lensing by Kerr black holes. In this first paper we present a new, general lens equation and magnification formula governing lensing by a compact object. Our lens equation assumes that the source
Aazami, Amir B., Keeton, Charles R., Petters, A. O.   +2 more
core   +1 more source

Efficient and Realistic Brain Simulation: A Review and Design Guide for Memristor‐Based Approaches

Advanced Materials Technologies, Volume 10, Issue 17, September 4, 2025.
Memristor‐based emulation of Hodgkin‐Huxley neuron models is investigated, by defining the ideal device characteristics needed for accurate ion‐channel representation and reviewing existing works targeting memristive replication of biological realistic neural behavior.
Lennart Paul Liong Landsmeer, Muhammad Ali Siddiqi, Heba Abunahla, Mario Negrello, Said Hamdioui, Christos Strydis   +5 more
wiley   +1 more source

Weak Gravitational Flexion

, 2005
Flexion is the significant third-order weak gravitational lensing effect responsible for the weakly skewed and arc-like appearance of lensed galaxies. Here we demonstrate how flexion measurements can be used to measure galaxy halo density profiles and ...
Bacon, D. J., Goldberg, D. M., Rowe, B. T. P., Taylor, A. N.   +3 more
core   +2 more sources

Relational Supersymmetry via the Dressing Field Method and Matter‐Interaction Supergeometric Framework

Annalen der Physik, Volume 537, Issue 9, September 2025.
Applications of the Dressing Field Method are reviewed and further expanded to the very foundations of the supersymmetric framework, where it allows to build relational supersymmetric field theory. Furthermore, a novel approach is proposed giving a unified description of fermionic matter fields and bosonic gauge fields: a Matter‐Interaction ...
Jordan François, L. Ravera
wiley   +1 more source

The theory of stochastic cosmological lensing

, 2015
On the scale of the light beams subtended by small sources, e.g. supernovae, matter cannot be accurately described as a fluid, which questions the applicability of standard cosmic lensing to those cases.
Fleury, Pierre, Larena, Julien, Uzan, Jean-Philippe   +2 more
core   +2 more sources

Gravitational lensing and shadow by a Schwarzschild-like black hole in metric-affine bumblebee gravity

European Physical Journal C: Particles and Fields
In this paper, we investigate the gravitational lensing effect and the shadow around a Schwarzschild-like black hole in metric-affine bumblebee gravity, which leads to the Lorentz symmetry breaking.
Xiao-Jun Gao
doaj   +1 more source

$f(R)$ gravity theories in the Palatini Formalism constrained from strong lensing

, 2009
$f(R)$ gravity, capable of driving the late-time acceleration of the universe, is emerging as a promising alternative to dark energy. Various $f(R)$ gravity models have been intensively tested against probes of the expansion history, including type Ia ...
Amarzguioui, Amendola, Armendariz-Picon, Armendariz-Picon, Astier, Borowiec, Browne, Caldwell, Caldwell, Capozziello, Capozziello, Capozziello, Carroll, Carvalho, Chae, Chae, Chae, Chen, Chen, Chiba, Choi, Cole, Copeland, Da-Ming Chen, Dabrowski, Dave, de Bernardis, Eisenstein, Erickcek, Fay, Hinshaw, Hopkins, Huterer, Im, Inada, Kamenshchik, Keeton, Keeton, Kochanek, Kochanek, Kochanek, Koivisto, Koopmans, Koopmans, Li, Li, Li, Li, Li, Li, Mao, Maoz, Mitchell, Moller, Navarro, Nojiri, Nojiri, Ofek, Oguri, Oguri, Oguri, Oguri, Olmo, Olmo, Page, Perlmutter, Richards, Riess, Riess, Riess, Rix, Rusin, Santos, Sarbu, Seljak, Sotiriou, Sotiriou, Sotiriou, Spergel, Spergel, Tegmark, Tegmark, Vollick, Weinberg, Wu, Wu, Wu, Wu, Wyithe, Xin-Juan Yang, Zhang, Zhu, Zhu   +92 more
core   +3 more sources

A Smithian Political Economy Approach for the Competition Law of the 21st Century

The Modern Law Review, Volume 88, Issue 4, Page 712-768, July 2025.
This study aims to show how a Smithian political economy approach could assist competition law in addressing the challenges of the 21st‐century economy. We revisit Smith's Wealth of Nations to provide a more nuanced understanding of his views, contrasting them with the prevailing libertarian interpretation called here ‘Chicago Smith’.
Stavros Makris
wiley   +1 more source

Weak Lensing by Large-Scale Structure: A Dark Matter Halo Approach [PDF]

, 2000
Weak gravitational lensing observations probe the spectrum and evolution of density fluctuations and the cosmological parameters which govern them but are currently limited to small fields and subject to selection biases.
Asantha Cooray, Bartelmann M., Bernardeau F., Blandford R. D., Cole S., Cooray A. R., Jordi Miralda-Escudé, Mo H. J., Peacock J. A., Sunyaev R. A., van Waerbeke L., Wayne Hu   +11 more
core   +2 more sources

INHERITANCE AND INCEST: TOWARD A LÉVI‐STRAUSSIAN READING OF MONTESQUIEU'S DE L'ESPRIT DES LOIS1

History and Theory, Volume 64, Issue 1, Page 46-74, March 2025.
ABSTRACT The premise of this article is that Montesquieu, while seen as an Enlightenment thinker who contributed centrally to the development of the social sciences before the period of discipline formation in the nineteenth century, is generally appreciated in only the vaguest of terms.
Paul Cheney
wiley   +1 more source